Wastewater Pumps

Taking care of your wastewater

Industrial wastewater isn’t one-size-fits-all, and neither are the pumps that move it. Whether you’re designing a new plant or keeping existing systems running, you need wastewater pumps that handle the job efficiently—without clogging, failing, or slowing production.

We supply a diverse range of industrial wastewater pumps and stirrers designed to tackle everything from light process water to thick sludge and fibrous waste. With options including submersible and surface-mounted pumps, cutters, and stirrers, we’ll help you find the right fit for your plant.

Extensive Range

Tailored pumping solutions

Our Industrial Team are industry-trained and offer in-depth knowledge of industrial pumps and systems. Choose from our extensive range of:

Self-Priming Centrifugal pumps – High-flow solutions for process wastewater transfer.
Diaphragm pumps – For abrasive or chemically aggressive wastewater.
Submersible pumps – For wastewater pits, sumps, and direct tank installations.
Progressive cavity pumps – Easily convey thick sludge and viscous waste.
Stirrers – Keep solids in suspension.

Industrial Parts and Servicing

Genuine parts & sound advice

We supply genuine parts for the pump brands we carry, with stock of common wear parts held locally in New Zealand. Our dedicated Industrial team works closely with supply partners to ensure we provide the right parts and expert advice.

Genuine parts for reliability and performance
Stock held in NZ for fast delivery
Maintenance advice tailored to your needs
Servicing on request to keep your equipment running smoothly

We’re committed to keeping your pumps in top condition.

Overview of our Wastewater Pumps

LJM Wastewater Submersible Cutter Pumps

Ideal for handling tough wastewater applications with high dry solids content, ensuring reliable and robust performance.

Power: 1.5 to 18.5 kW
Long service intervals
Heavy-duty construction
Strong, user-friendly mounting brackets

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LJM Wastewater Geared Stirrers

Designed for optimal wastewater treatment, preventing sedimentation and ensuring efficient media movement.

Power: 1.5 to 18.5 kW
Self-cleaning propeller
Low energy consumption
Heavy-duty cast structures

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Caffini Electric Diaphragm Pumps

Designed for high flow, low pressure situations where transfer of thick slurries is required.

Size: 50mm - 152mm
Max Flow: 830L/min
Max Head: 15m
Max Solids: 60mm

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Caffini Petrol Diaphragm Pumps

Designed for high flow, low pressure situations where transfer of thick slurries is required.

Size: 50mm - 102mm
Max flow: 520L/min
Max head: 15m
Max Solids: 60mm

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Wangen Hopper Feed PC

Wangen produces an extensive range of hopper feed pumps for slurries and pastes with high solids content (KL-R Series) and dewatered sludge (KL-RU, KL-RQ, KL-RS and KL-R Triplex models).

Max flow: 160m³/hr
Max pressure: 48 bar
Max solids: 45%
For extremely dry or lumpy material

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Wangen Self-Priming PC Pumps with X-LIFT The Wangen Xpress with X-LIFT ensures quick-change of the rotor and stator and reliable conveyance of digested sludge and low viscous media.

Max flow: 102m³/hr
Max pressure: 6 Bar
Max Dry Solids: 8%
Compact and designed for hard to access locations

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Proril Industrial Stainless Submersibles

Corrosion-resistant, durable submersibles used to transfer clean or slightly contaminated water up to 40 degrees.

Size: 50mm – 76mm (2”-3”)
Max flow: 11L/s
Max head: 20m
Max solids: 40mm

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Wangen Self-Priming PC Pumps

Wangen's KL-S, KB-S and KB22S self-priming PC pumps convey high viscous media up to 200,000mPA-s with or without solids. The KB22S is designed specifically for dosing.

Max Flow: 560 m3/hr
Max Pressure: 48 bar
Materials: S/steel, cast iron

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Wangen Hyline PC Pumps

The Hyline Series by Wangen features flexible and maintenance-free joints, and sedimentation-free design. Convey or dose food and beverages, cosmetics and pharmaceuticals.

Max flow: 7m3/hr
Max pressure: 20 bar
Max solids: 26mm

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Forani & Pecorari Marine Pumps

The AM Series bronze, self-priming centrifugal pumps have a double volute body. Use for bilge, deckwash, fire prevention or ballast.

Max flow: 100m3/hr
Max head: 79m

View Datasheet

Varisco Self-Priming Centrifugal Pumps

Varisco J-Series pumps suit applications that require fast priming from demanding suction heights, and the ability to manage polluted, waste and abrasive fluids with suspended solids.

Max flow: 1200m3/hr
Max head: 110m
Max solids: 76mm
Self-priming 7.5m

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SolidsPro Stirrers

SolidsPro stirrers are used to ensure uniform mixing in waste liquids with solids present, to prevent sedimentation and enhance biological or chemical reactions. Commonly used to agitate dairy effluent storage sumps/tanks & ponds to prevent solids from settling out.

Cast AISI 316 S/Steel Propellor
AISI 304 S/Steel mounting brackets
Self-cleaning blades
Double mechanical seal in oil bath

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SolidsPro Vortex Submersibles

Engineered to resist clogging SolidsPro vortex submersibles feature recessed impellers with large free passage. Ideally suited to pumping large volumes of waste fluids where solids or particle are present.

Max flow: 103m³/hr
Max head: 20m
Max solids: 80mm
Humidity probe: yes

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Wangen PC Immersion Pumps

Wangen KL-T Series Progressive Cavity Immersion pumps safely convey media from tanks and pools with high metering accuracy even at low rpm.

Max Flow: 102m³/hr
Max Pressure: 6 bar
Max viscosity: 200,000 mPA-s
Max Dry Solids: 16%

View Brochure

Varisco Self-Priming Centrifugal Pumps

Varisco J-Series pumps suit applications that require fast priming from demanding suction heights, and the ability to manage polluted, waste and abrasive fluids with suspended solids.

Max flow: 1200m³/hr
Max head: 110m
Max solids: 76mm
Self-priming 7.5m

View All

Industrial Pumps Servicing & Parts

Prime Fluid Management supplies genuine parts for our pump brands, holding stock of common wear parts in New Zealand.

Genuine parts
Stock held in NZ
Maintenance advice
Servicing on request

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In the field

Here are some examples of our solutions being used.

Talk to us today

They brought their mechanics, they didn't just dump it and leave….couldn't have done it without them to be honest

Mark CadwalladerCatchment Worker

This sort of unique system you set up is what sets you apart from others in the Market

Jacob Warmsley Project Manager

I had an amazing experience with Prime Pump at the Transmission Gully ... will recommend you guys anytime and anywhere.

Peter FisherDirector

You guys had our backs from the get-go and stood beside us and persevered.

DaveOps Director

We called for a different type of solution…... We were pretty happy with what's been delivered

Rob KerrProject Director

Prime supplied us with the best solution for hire and the instant availability was what we needed… We certainly will be using them in the future

Priscilla EllmersWastewater Supervisor

Let’s sort your fluid management needs
Speak to an expert

Tony Hylands
Industrial Pumping Solutions

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Kobus van der Merwe
Industrial Sales Engineer

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Charlie Petrie
Sales Manager

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Questions

FAQ

At Prime Fluid Management, we understand that every fluid management challenge brings unique considerations. Here, you’ll find clear, practical answers and expert guidance to help you maximise uptime, achieve regulatory compliance, extend equipment life, and implement the most effective solution for your site.

Do you supply oil transfer pumps that can meet API 676 requirements?

Some positive displacement internal gear pump ranges are manufactured to API 676, with specific exceptions depending on the model. If API 676 compliance is part of your specification, we can confirm suitability during selection and provide the relevant documentation.

What’s the best oil transfer pump in NZ for diesel, fuel oil, or lubricating oil?

The best option depends on viscosity, temperature, and whether you need steady metered flow or high throughput transfer. For many industrial oils and fuels, internal gear and external gear pumps are common choices because they provide consistent flow and handle higher viscosity fluids well.

Can these pumps be specified for hazardous areas?

Yes, hazardous area options may be available depending on the selected pump and motor package. For example, some equipment ranges offer certified IECEx hazardous area rated configurations, which can be specified when the site classification requires it – including suitable options for Zone 1 and Zone 2 hazardous areas.

Do you need flooded suction, or can the pump run on suction lift and self priming?

It depends on the fluid, temperature, viscosity, and how the tank and pipework are laid out. A flooded suction setup is usually the most stable option for consistent performance, especially with higher viscosity oils, because the pump is always supplied with product.

If the pump needs to draw from a lower level or from a longer suction line, suction lift and self priming capability become important. However, the setup needs to be sized correctly to avoid issues like poor priming, air ingress, or cavitation. If you share your suction conditions and duty point, we can recommend a pump type and configuration that suits the installation.

What features help protect the pump and improve reliability on fuel and oil duties?

For fuel and oil applications, reliability often comes down to protecting the pump from pressure spikes and contamination, and selecting the right sealing arrangement. Depending on the pump type and duty, options can include an internal relief or bypass valve to protect against dead heading, and an inline suction strainer to reduce the risk of damage from debris.

Seal selection also matters for demanding services, with configurations such as double mechanical seals used on certain duties where additional containment or reliability is required. We can guide you on what features make sense based on the product, operating conditions, and site requirements.

What information do you need to specify a fuel transfer pump in NZ?

To specify the right fuel transfer pump for a New Zealand site, we typically need the fuel type, required flow rate, temperature, and viscosity, along with suction conditions such as flooded suction or suction lift.

Once we have those details, we can confirm the most suitable pump type and configuration for your application – including options for heavier fuels where viscosity is higher.

Wastewater Pumps

Taking care of your wastewater

Tailored pumping solutions

Genuine parts & sound advice

Overview of our Wastewater Pumps

Questions? Specs? Talk to one of our Industrial Specialists today.

See other Industrial Pumps

Read Industrial Articles

In the field

They brought their mechanics, they didn't just dump it and leave….couldn't have done it without them to be honest

This sort of unique system you set up is what sets you apart from others in the Market

I had an amazing experience with Prime Pump at the Transmission Gully ... will recommend you guys anytime and anywhere.

You guys had our backs from the get-go and stood beside us and persevered.

We called for a different type of solution…... We were pretty happy with what's been delivered

Prime supplied us with the best solution for hire and the instant availability was what we needed… We certainly will be using them in the future

Make an enquiry

Let’s sort your fluid management needs
Speak to an expert

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Equipment • Expertise • Results

Wastewater Pumps

Taking care of your wastewater

Tailored pumping solutions

Genuine parts & sound advice

Overview of our Wastewater Pumps

Questions? Specs? Talk to one of our Industrial Specialists today.

See other Industrial Pumps

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GVR External Gear Pumps

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Self-Priming Centrifugal Pumps

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Hygienic Progressive Cavity Pumps

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